Error when generating points for scan

[Jonathan S]

Does this ever happen to you? I select a surface, set the boundaries and when I tell it to generate points, I get the error message "PCDLRN has generated errors and will be closed by Windows". I have had it happen somewhat frequently, but not often enough to find some common factor that is causing it. Of course I lose any work since the last save. I have a simple flat surface with an irregular perimeter. I tried changing start point and direction vectors but I still get the error.

[Duckhunter]

Yes it happens to me occasionally...not often. Usually by changing offsets(perimeter) or locations, (section/linear open/closed). I can get away from it. Not sure what casues it...For me it seems to be limited to a surface here of there...could be a bad cad import.?.?

[BSchwark]

"Save" often. Especially before taking large steps like scans. I have that problems when I delete scans or sections of scans. I had more problems with 3.5 than 3.7. Maybe by the time we hit 6.0 most of the problems and bugs will be gone Save Save Save.......


BS

[Rick Coleman]

Sometimes the patch scans can be a pain. The auto crash mode you describe happens to me also. I do the ctr'l-s after EVERY scan I take, just to make sure I don't lose past scans, espically if I'm doing patch scans. Try changing the size and/or shape of your patch. You might just end up having to take a series of linear scans instead of a patch.

[ytilauq]

Remember that iges surface boundaries as seen by PCDMIS are calculated from the "Untrimmed edges". I have found most scan errors and dumps from the program result from the cad side. I recommend to take the original iges file back into a cad program and "Untrim" the surface you are trying to scan to see just how big it is... You might want to redraw the surface if possible another way before import.

Note: if you use the "Program mode" and hit the surface to create points... and it does not create any points in U or V then u are dealing with a rather large trimmed surface.

[Hilton Roberts]

I do not do a lot of patch scans but other than that I use scanning often.

I have found that it works better for me to generate the scans I need and save often. I never convert the scans to points until I am finished with all the scans and I save after converting each scan to points.

There seems to be an issue when trying to generate the points from the scans if you get in a hurry and try to generate points from say scan 8 before scan 7 is complete.

HTH

Hilton

[Paul Sarrach]

Mornin Hilton,

I found that too. What made it stop for me was to check both "single point" and "show all" boxes. I do not have a logical explantion. but I never get that error no more. try it let me know

[Hilton Roberts]

If everything worked fine...there would nothing for Monday Moaning....right

H

[Paul Sarrach]

Bad week Hilton? More than one Monday. Its Thursday already. LOL

[Dick Helm]

Scanning takes a lot of speed and RAM. Especially patch scans. You may have to upgrade your computer. In the meantime, try reducing the scan density (4 points per mm) and scan speed (5%). I had a lot of problems scanning until I got a faster computer. It is pretty frustrating when it bursts. Save often anyway.

[Hilton Roberts]

Paul,

This week has been a series of all day train wrecks.....